1.
Rev. méd. Chile
;
122(4): 415-9, abr. 1994. tab, ilus
Article
in Spanish
| LILACS
| ID: lil-131751
2.
Rev. chil. obstet. ginecol
;
58(4): 257-61, 1993.
Article
in Spanish
| LILACS
| ID: lil-136945